establish flock contact
James M Hartshorne
17 Mar 1956
- RED ROCKS LAKE NAT. WILDLIFE REFUGE
- Parabola (Unknown Diameter/Focal Length)
NOTES: Cover density: OPEN; CONVERSATION NOTES. Sex: 275 UNKNOWN Based on the site, these almost certainly represent Trumpeter Swans, at the time recognized by some authors as C. c. buccinator - CAM - 27 October 2004.